1)构成一般疑问句。例如: Do you want to pass the CET? 你想通过大学英语测试吗? Did you study German? 你们学过德语吗? 2)do + not 构成否定句。例如: I do not want to be criticized. 我不想挨批评。 He doesnt like to study. 他不想学习。 In the past, many students did not know the importance of English. 过去,好多学生不知道英语的重要性。 3) 构成否定祈使句。例如: Dont go there. 不要去那里。 Dont be so absent-minded. 不要这么心不在焉。 说明: 构成否定祈使句只用do,不用did和does. 4)放在动词原形前,加强该动词的语气。例如: Do come to my birthday party. 一定来参加我的生日宴会。 I did go there. 我确实去那儿了。 I do miss you. 我确实想你。 5)用于倒装句。例如: Never did I hear of such a thing. 我从未听说过这样的事情。 Only when we begin our college life do we realize the importance of English. 进了大学以后,我们才认识到英语的重要性。 说明: 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。 |